研究了新型高合金超高强度钢(23NiCo)中M2C的回火析出机制.结果表明M2C以非均匀形核方式析出,有两种形核机制,一种是自基体位错上直接析出,即单独形核;另一种是在渗碳体上形核,即原位形核.以单独形核机制析出的M2C与基体高度共格;以原位形核机制析出的M2C与基体非共格.
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